78809073076 has 96 divisors (see below), whose sum is σ = 155912601600. Its totient is φ = 34668103680.

The previous prime is 78809073073. The next prime is 78809073191. The reversal of 78809073076 is 67037090887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78809073073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15392845 + ... + 15397963.

It is an arithmetic number, because the mean of its divisors is an integer number (1624089600).

Almost surely, 2^78809073076 is an apocalyptic number.

It is an amenable number.

78809073076 is a deficient number, since it is larger than the sum of its proper divisors (77103528524).

78809073076 is a wasteful number, since it uses less digits than its factorization.

78809073076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5417 (or 5415 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 55.

The spelling of 78809073076 in words is "seventy-eight billion, eight hundred nine million, seventy-three thousand, seventy-six".